If the distance from a point source of sound is doubled, by what factor does the intensity decrease?

Answer Details

When the distance from a point source of sound is doubled, the intensity of the sound wave decreases by a factor of four. The intensity of a sound wave is inversely proportional to the square of the distance from the source. This means that as the distance from the source increases, the intensity of the sound wave decreases. Doubling the distance means the distance is squared in the denominator, resulting in the intensity decreasing by a factor of four (2^2 = 4). Therefore, the correct option is: 4.00.